Before buying a car, you may wonder how often that model tends to break down and how reliable it is. On one hand, you just want to know what type of repair costs to expect. At the same time, you also want to know if the car is going to be more of an inconvenience than it's worth. You need a vehicle that you can trust to work properly when you need it, especially if you're buying it brand new.
A "lemon" is a car that is dysfunctional, even though you had no idea when you bought it. Clearly, cars do wear down over time, just like any other product. Repairs are expected. However, if the car is not up to the realistic standards for a vehicle, then you need to get your money back from the company that produced it. You have rights as a buyer.